# CEDOCS

CEDOCS

Status: LIVE
Price: $0.005 USDC
`GET /api/calc/cedocs`
HTML: https://magentlab.com/docs/cedocs
Markdown: https://magentlab.com/docs/cedocs.md

Not a medical device. Not a diagnosis, dose, or listing recommendation.

## What it computes

Compute the Weiss 2014 CEDOCS reduced-model score from caller-supplied critical-care patients, longest admitted-patient hours since admission, waiting-room count, ED patients, ED beds, and annual ED visits.

## When to use

When an agent has the published snapshot counts, hours, and annual visits for a community ED and needs the Weiss 2014 reduced-model CEDOCS score, not a diversion or ambulance-bypass order.

## When not to use

- Not a medical device. Not a diversion or ambulance-bypass order.
- magent does not count patients, beds, or wait times. Caller supplies the published numeric inputs.
- Weiss 2014 reduced model for community EDs. Academic NEDOCS is a different tool.
- The paper's outcome scale is 0-100. magent does not clamp the linear combination, does not double the score onto a 0-200 range, and does not invent 20/60/100 named class bands.
- Pediatric-only EDs were not this model. Not a diagnosis of crowding-related harm.

## Formula

```
cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3
```

## Citation

[Evaluating community ED crowding: the Community ED Overcrowding Scale study](https://doi.org/10.1016/j.ajem.2014.08.035)
Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG
Am J Emerg Med. 2014;32(11):1357-1363
DOI: [10.1016/j.ajem.2014.08.035](https://doi.org/10.1016/j.ajem.2014.08.035)

## Worked example

### Paper spline worked visits (empty 20-bed community ED, 46000 annual visits)

Given: `admit_time_hours=0, critical_care_patients=0, ed_beds=20, ed_patients=0, ed_visits_per_year=46000, waiting_room_patients=0`

1. occupancy D = 0/20 = 0; A = 0; B = 0 h; C = 0; E = 46000
2. 0.00126*46000 = 57.96; pmax(E-18811,0)=27189 and pmax(E-43012,0)=2988 enter the cubic spline; later knots are 0
3. cedocs_score = -30.39 + 57.96 minus the first cubic plus the second cubic, 1 decimal (paper 0-100 scale, unclamped)


### Busy 20-bed community ED at the same annual volume

Given: `admit_time_hours=8, critical_care_patients=4, ed_beds=20, ed_patients=40, ed_visits_per_year=46000, waiting_room_patients=15`

1. occupancy D = 40/20 = 2.0; A = 4; B = 8 h; C = 15; E = 46000
2. cedocs_score adds 3.00*4 + 0.53*8 + 1.16*15 + 20.66*2.0 to the empty-ED spline intercept, 1 decimal


## Also searched as

- CEDOCS
- Community ED Overcrowding Scale
- community emergency department crowding
- Weiss CEDOCS
- CEDOCS reduced model
- community ED overcrowding
- Weiss 2014 crowding

## Parameters

- `critical_care_patients` (integer, required): Critical-care patients in the ED (integer 0-20). Weiss 2014 reduced-model A. magent does not count patients.
- `admit_time_hours` (number, required): Hours the longest-waiting admitted patient has been in the ED since admission (0-120). Weiss 2014 reduced-model B. Not time since registration. magent does not measure wait times.
- `waiting_room_patients` (integer, required): Patients in the waiting room (integer 0-200). Weiss 2014 reduced-model C. magent does not count waiting-room patients.
- `ed_patients` (integer, required): Total patients in the ED (integer 0-200). Weiss 2014 occupancy numerator (beds plus doubled-up or hallway). magent does not count patients.
- `ed_beds` (integer, required): Number of ED beds (integer 1-300). Weiss 2014 occupancy denominator. magent does not count beds.
- `ed_visits_per_year` (integer, required): ED visits per year (integer 1000-200000). Weiss 2014 reduced-model E with restricted cubic spline knots at 18811, 43012, 49466, and 67273. The paper's spline worked example uses 46000. magent does not count visits.

## Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

Method: `POST /api/calc/cedocs`
Max items: 25
Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic)
Status: PREVIEW

- 1 to 25 items. Each item uses the same keys as the GET query parameters.
- POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
- The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
- HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
- Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
- x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request:

```json
{
  "items": [
    {
      "admit_time_hours": "0",
      "critical_care_patients": "0",
      "ed_beds": "20",
      "ed_patients": "0",
      "ed_visits_per_year": "46000",
      "waiting_room_patients": "0"
    },
    {
      "admit_time_hours": "0",
      "critical_care_patients": "0",
      "ed_beds": "20",
      "ed_patients": "0",
      "ed_visits_per_year": "46000",
      "waiting_room_patients": "0"
    }
  ]
}
```

Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/cedocs

Example 200:

```json
{
  "count": 2,
  "path": "/api/calc/cedocs",
  "items": [
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
        "doi": "10.1016/j.ajem.2014.08.035",
        "id": "weiss-2014",
        "pmid": "25234796",
        "source": "Am J Emerg Med. 2014;32(11):1357-1363",
        "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
      },
      "formula": "cedocs",
      "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
      "admit_time_hours": 0.0,
      "cedocs_score": 5.5,
      "critical_care_patients": 0,
      "ed_beds": 20,
      "ed_patients": 0,
      "ed_visits_per_year": 46000,
      "occupancy": 0.0,
      "waiting_room_patients": 0
    },
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
        "doi": "10.1016/j.ajem.2014.08.035",
        "id": "weiss-2014",
        "pmid": "25234796",
        "source": "Am J Emerg Med. 2014;32(11):1357-1363",
        "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
      },
      "formula": "cedocs",
      "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
      "admit_time_hours": 0.0,
      "cedocs_score": 5.5,
      "critical_care_patients": 0,
      "ed_beds": 20,
      "ed_patients": 0,
      "ed_visits_per_year": 46000,
      "occupancy": 0.0,
      "waiting_room_patients": 0
    }
  ]
}
```

## Response fields

- `formula` (string): cedocs
- `formula_expression` (string): Weiss 2014 reduced-model expression with annual-visit cubic spline
- `critical_care_patients` (integer): Caller-supplied critical-care patients in the ED (A)
- `admit_time_hours` (number): Caller-supplied longest admitted-patient hours since admission (B)
- `waiting_room_patients` (integer): Caller-supplied waiting-room count (C)
- `ed_patients` (integer): Caller-supplied total ED patients used as the occupancy numerator
- `ed_beds` (integer): Caller-supplied ED beds used as the occupancy denominator
- `ed_visits_per_year` (integer): Caller-supplied annual ED visits (E)
- `occupancy` (number): ed_patients / ed_beds, 4 decimals (Weiss 2014 D)
- `cedocs_score` (number): Weiss 2014 reduced-model score, 1 decimal. The paper's outcome scale is 0-100; the linear combination is not clamped.
- `citation` (object): Weiss 2014 Am J Emerg Med citation
- `disclaimer` (string): Not-a-device notice

## Example JSON

Frozen fixture. Not a live lookup.

```json
{
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG",
    "doi": "10.1016/j.ajem.2014.08.035",
    "id": "weiss-2014",
    "pmid": "25234796",
    "source": "Am J Emerg Med. 2014;32(11):1357-1363",
    "title": "Evaluating community ED crowding: the Community ED Overcrowding Scale study"
  },
  "formula": "cedocs",
  "formula_expression": "cedocs_score = -30.39 + 3.00 * critical_care_patients + 0.53 * admit_time_hours + 1.16 * waiting_room_patients + 20.66 * (ed_patients / ed_beds) + 0.00126 * ed_visits_per_year - 1.11e-12 * pmax(ed_visits_per_year - 18811, 0)^3 + 8.23e-12 * pmax(ed_visits_per_year - 43012, 0)^3 - 8.20e-12 * pmax(ed_visits_per_year - 49466, 0)^3 + 1.08e-12 * pmax(ed_visits_per_year - 67273, 0)^3",
  "admit_time_hours": 0.0,
  "cedocs_score": 5.5,
  "critical_care_patients": 0,
  "ed_beds": 20,
  "ed_patients": 0,
  "ed_visits_per_year": 46000,
  "occupancy": 0.0,
  "waiting_room_patients": 0
}
```

## Errors

- HTTP 400 `invalid_cedocs`: CEDOCS needs Weiss 2014 community ED occupancy, wait, and annual-visit inputs in published ranges. Returned before settlement; you are not charged.
- HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
- HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
- HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged.

Shared HTTP 402 and 503: https://magentlab.com/docs/payments

## Related tools

- [NEDOCS](https://magentlab.com/docs/nedocs) — Compute the Weiss 2004 NEDOCS reduced five-variable score from caller-supplied ED patients, ED beds, boarding patients, hospital beds, respirators, longest admitted-patient hours, and last-called registration-to-bed hours, and return the published ≥100 overcrowding cutoff.

## Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s.

- GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall).
- HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote.
- Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering.
- Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional.
- Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402.

- offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront.
- offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization.

- not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search.

Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers).

Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments

Stdio MCP (one process per host): https://magentlab.com/docs/mcp

## Guarantees

- HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
- exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
- HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
- Execution is timeout-bounded and concurrency-capped.
- Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.